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C Y@ UM @einen gisten stnt @ffice ELlJAH IS. PIERCE, O F H A'RTFOR'D, CONNECTCVT.k

Letters Patent Nb. 71,638, dated December 3, 1867; I

ursovso MBcHANIsi/i ros rssouic SCREW-BLANES.

TO LL WHOM T MAY CONCERN:

Bc it known that l, ELIJAH S. PIERGE of IIartford, in the county of Hartford, and State of Connecticut, llave invcmcil n newnand improved Feeding-Mechanism; and I do hereby declare that the following is a full, eicfxr, und exact description of the construction and operation of tho same, reference being had to the accom punyng drawings, and to the letters oi' 'reference marked thereon.

Figure 1 shows a front view of t-hc improved feeding-mechanism.

Figure 2 shows a top View or plan-'of the same.

Like letters in the figures indicate like parts.

My invention consists in an automatic mechanism 'for conveying ond'fceding screw-blanks or other similar articles, one by one, into n machine, in a' uniform'manner and in a proper position, so that they may be operated upon singly. l v

A is a wheel, which, as in the drawings, may be one of the wheels of the machine with which the feedingmechanism vis, connected, and which is provided'with cams','at M and N,to operate the levers B and C. The levcr B has a lower' arm, D, connected with it by the-rockingshaft .To the arm D is attached a connectingrod, F, which'commuuicates a reciprocating motion to the lever Gr, attached to the bottom of the upright spindle H, wliich passes through the pillar I, and communicates motion to the conveying-arm J, lso as to cause it to move from the position shown in the drawings round to communicate with the spindle and jaws K. p isa stop, to prevent the arm J moving farther than opposite K. The v'adjustable pin i strikes againstit when the screw-blank is exactly opposite the jawsv K. 4L is a rocking-piece for releasing one blank at a time from the trough O, so that one can drop into the receptaclefm, in the conveying-arm J, at each movement-of that arm. The piece L is furnishedjwith projecting pins Z Z and Z Z', for holding and releasing the blanks. -P is a. rod foripushng theV blanks into the jaws of the spindle K, when the arm Jhas moved so as to b opposite the proper point. This rod is operated by the arm Q, which is moved by theicam N, acting through the lever B and rocking-shai`t R. s is a. spring for operating the rod P, as will be described. q is an adjustable stop for the armQ. c, d, and g are set-screws for adjusting theI position of. the levers C, D,'and G upon their shafts. l

The operation of my' invention is as follows:` The 4 blanks being received from the'hopper into the feeding trough O, they pass down in a singlerw and rest npons the pins Z Z. The rocking-piece L is pressed against the conveying-arm J by a spring, which, as soon as the arm J vis turned toward K, moves the piece L, and presses in the pins Zand Z, and-releases Zand Z', so that a blank fallsdown upon Zand Z,- and the next takes its place. When the arm J again strikes the piece L, on its return, thc pins ,Z and Z are Vagain pushed in, and Zand Z released, which drops vthe blank' into the receptacle m oi' vthe arm J.v The arm J turns by the operation of the cam M, and brings the blank opposite, the jaws infthe spindle K. The rod P is then pushed in by the arm Q, operated by the cam N, and the blank -is received by the jaws. l The arm Q then withdraws, and allows the rod P to be forced back to its rst position by the spring s. The conveying-arm then returns'to its vrst positiomas shown in the drawings, andstrkes the llower end, n, of the rocking-piece L, pushes it back against its spring, and

releases another blank, which falls into the receptacle m, inthe arm J, as before described. The arm J then rests-in its position till the next blank is needed to be fed into the machine.

C'Zaz'm. What I claim as my invention, ,and desire to secure by Letters Patent, isl1. The combination of the cams M and N, the levers B, C, D, and -Gr, the rocking-shafts E and R, the connectingrod F, the 'spindle Hfthe conveying-arm J, the rod' P, the arm Q, the rocking-piece L, the feedingtrough O, or their mechanical equivalents, the whole constituting a feeding and conveying-mechanism, subw stantially as herein set forth.' l A 2. The combination of the conveying-arm J, the rod P, theV arm Q, and the feeding-trough O, operating substantially as herein described, and for-the purpose specified.

described. l

3. I claim the conveying-arm-J, the rod P, and the arm Q, constructed Iandoperating substantially as ELIJAH s. Pinnen.

Witnesses:

SAM. ALLEN, THEO.. G. ELLIS. 

